diff options
Diffstat (limited to 'gcc/config/m68k/m68k.h')
| -rw-r--r-- | gcc/config/m68k/m68k.h | 46 |
1 files changed, 23 insertions, 23 deletions
diff --git a/gcc/config/m68k/m68k.h b/gcc/config/m68k/m68k.h index 268b639d8b7..9a58f1db6be 100644 --- a/gcc/config/m68k/m68k.h +++ b/gcc/config/m68k/m68k.h @@ -341,11 +341,6 @@ extern int target_flags; /* This defines the register which is used to hold the offset table for PIC. */ #define PIC_OFFSET_TABLE_REGNUM 13 -/* Used to output a (use pic_offset_table_rtx) so that we - always save/restore a5 in functions that use PIC relocation - at *any* time during the compilation process. */ -#define FINALIZE_PIC finalize_pic() - #ifndef SUPPORT_SUN_FPA /* 1 for registers that have pervasive standard uses @@ -446,8 +441,17 @@ extern int target_flags; if (TEST_HARD_REG_BIT (x, i)) \ fixed_regs[i] = call_used_regs[i] = 1; \ } \ + if (flag_pic) \ + fixed_regs[PIC_OFFSET_TABLE_REGNUM] \ + = call_used_regs[PIC_OFFSET_TABLE_REGNUM] = 1;\ +} +#else +#define CONDITIONAL_REGISTER_USAGE \ +{ \ + if (flag_pic) \ + fixed_regs[PIC_OFFSET_TABLE_REGNUM] \ + = call_used_regs[PIC_OFFSET_TABLE_REGNUM] = 1;\ } - #endif /* defined SUPPORT_SUN_FPA */ /* Return number of consecutive hard regs needed starting at reg REGNO @@ -772,23 +776,19 @@ extern enum reg_class regno_reg_class[]; in some cases it is preferable to use a more restrictive class. On the 68000 series, use a data reg if possible when the value is a constant in the range where moveq could be used - and we ensure that QImodes are reloaded into data regs. - Also, if a floating constant needs reloading, put it in memory. - Don't do this for !G constants, since all patterns in the md file - expect them to be loaded into a register via fpmovecr. See above. */ - -#define PREFERRED_RELOAD_CLASS(X,CLASS) \ - ((GET_CODE (X) == CONST_INT \ - && (unsigned) (INTVAL (X) + 0x80) < 0x100 \ - && (CLASS) != ADDR_REGS) \ - ? DATA_REGS \ - : (GET_MODE (X) == QImode && (CLASS) != ADDR_REGS) \ - ? DATA_REGS \ - : (GET_CODE (X) == CONST_DOUBLE \ - && GET_MODE_CLASS (GET_MODE (X)) == MODE_FLOAT) \ - ? (! CONST_DOUBLE_OK_FOR_LETTER_P (X, 'G') \ - && (CLASS == FP_REGS || CLASS == DATA_OR_FP_REGS) \ - ? FP_REGS : NO_REGS) \ + and we ensure that QImodes are reloaded into data regs. */ + +#define PREFERRED_RELOAD_CLASS(X,CLASS) \ + ((GET_CODE (X) == CONST_INT \ + && (unsigned) (INTVAL (X) + 0x80) < 0x100 \ + && (CLASS) != ADDR_REGS) \ + ? DATA_REGS \ + : (GET_MODE (X) == QImode && (CLASS) != ADDR_REGS) \ + ? DATA_REGS \ + : (GET_CODE (X) == CONST_DOUBLE \ + && GET_MODE_CLASS (GET_MODE (X)) == MODE_FLOAT) \ + ? (TARGET_68881 && (CLASS == FP_REGS || CLASS == DATA_OR_FP_REGS) \ + ? FP_REGS : NO_REGS) \ : (CLASS)) /* Force QImode output reloads from subregs to be allocated to data regs, |